Contact in Structural Mechanics treats the problem of contact in the context of large deformations and the Coulomb friction law. The proposed formulation is based on a weak form that generalizes the classical principle of virtual powers in the sense that the weak form also encompasses all the contact laws. This formulation is thus a weighted residue method and has the advantage of being amenable to a standard finite element discretization. This book provides the reader with a detailed description of contact kinematics and the variation calculus of kinematic quantities, two essential subjects for any contact study. The numerical resolution is carried out in statics and dynamics. In both cases, the derivation of the contact tangent matrix – an essential ingredient for iterative calculation – is explained in detail. Several numerical examples are presented to illustrate the efficiency of the method.
Nonlinear Theory of Elastic Plates provides the theoretical materials necessary for the three plate models—Cosserat plates, Reissner-Mindlin plates and Kirchhoff-Love plates— in the context of finite elastic deformations. One separate chapter is devoted to the linearized theory of Kirchhoff-Love plates, which allows for the study of vibrations of a pre-stressed plate and the static buckling of a plate. All mathematical results in the tensor theory in curvilinear coordinates necessary to investigate the plate theory in finite deformations are provided, making this a self-contained resource. - Presents the tricky process of linearization, which is rarely dealt with, but explained in detail in a separate chapter - Organized in a mathematical style, with definitions, hypotheses, theorems and proofs clearly stated - Presents every theorem with its accompanying hypotheses, enabling the reader to quickly recognize the conditions of validity in results
Lagrangian Mechanics explains the subtleties of analytical mechanics and its applications in rigid body mechanics. The authors demonstrate the primordial role of parameterization, which conditions the equations and thus the information obtained; the essential notions of virtual kinematics, such as the virtual derivative and the dependence of the virtual quantities with respect to a reference frame; and the key concept of perfect joints and their intrinsic character, namely the invariance of the fields of compatible virtual velocities with respect to the parameterization. Throughout the book, any demonstrated results are stated with the respective hypotheses, clearly indicating the applicability conditions for the results to be ready for use. Numerous examples accompany the text, facilitating the understanding of the calculation mechanisms. The book is mainly intended for Bachelor's, Master's or engineering students who are interested in an in-depth study of analytical mechanics and its applications.
Since the 1950s, the domestic politics of the Republic of Vietnam (RVN) has puzzled outside observers. To these external analysts, the American-backed regime seemed to be plagued by instability and factionalism for no apparent reason. Their bewilderment, however, has obscured a deep and complex history. In Disunion, Nu-Anh Tran shows how factional struggles in the Saigon-based republic reflected serious disagreements about political ideas at a pivotal moment in the lead-up to the Vietnam War. The book traces the emergence of Vietnam’s anticommunist nationalists back to the struggle for independence and explores how their alliances were tested and then broken during the rule of the RVN’s first president, Ngô Đình Diệm. The anticommunists rejected the authoritarianism and ideology of the Vietnamese communists and dreamed of building an independent, democratic government that would unite the Vietnamese nation. The RVN was supposed to be the fulfillment of this long-cherished vision. But discord soon erupted among the anticommunists. Politicians fiercely debated to what extent the government should be democratic and which groups had a legitimate place in political life. The unresolved disagreements provoked intense and continuous infighting that troubled the RVN throughout the regime’s existence. Ultimately, the animosity undermined any possibility of realizing the anticommunists’ shared vision for the country. Based on previously neglected primary sources and extensive research in Vietnamese and American archives, Disunion paints a rich and sensitive portrayal of leaders and activists in the RVN. Anticommunist nationalists were deeply devoted to their homeland and inspired by forward-looking visions, but they were also hobbled by their failure to live up to their lofty ideals. By examining these historical figures on their own terms, the book offers a fresh perspective on the political history of South Vietnam that has remained misunderstood to this day.
Douglas Pike, an eminent authority on Southeast Asia and particularly on Vietnam, wrote: “Dr. Nguyen Anh Tuan is a highly respected economist and political thinker. Even perhaps for our purpose here, he is a man of great breadth of view, a philosopher in the true meaning of the word...” In America Coming to Terms, Dr. Nguyen Anh Tuan addresses himself to the central issue of the Vietnam War. This ambitious study seeks to place the U.S. involvement in Vietnam into the broader context of American and world history. The legacy of the Vietnam War remains a critical topic, particularly with the war in Iraq generating the specter of conflicting partisan politics in a deeply divided country. America’s involvement in Vietnam was misunderstood at the time and is still misrepresented now. As the Iraq War often invites comparisons with the Vietnam War, a full understanding of the U.S. experience in Vietnam is essential. More importantly, lessons learned from Vietnam can be applied to Iraq at present as well as to any U.S. conflict in the future. America Coming to Terms will help the American public to better understand the real legacy of the Vietnam War. It will provide Americans – liberal as well as conservative, Democrat as well as Republican – with substantive reasons to be united and to be proud of America. Most importantly, it will meaningfully impact the writing of American history for future generations and change for the better the world’s perception of the American people and of America. Steven Hayward, a most distinguished scholar wrote: “Revisionist historians two or three generations from now are likely to begin making the argument that the United States won the ultimate victory in the Vietnam War, and that it should be seen as the turning point in the Cold War...” In America Coming to Terms, Dr. Tuan set the record straight that – notwithstanding a number of mistakes that were committed – not only America won the Cold War but, ultimately, also won the Vietnam War.
Though a minority religion in Vietnam, Christianity has been a significant presence in the country since its arrival in the sixteenth-century. Anh Q. Tran offers the first English translation of the recently discovered 1752 manuscript Tam Gi o Chu Vong (The Errors of the Three Religions). Structured as a dialogue between a Christian priest and a Confucian scholar, this anonymously authored manuscript paints a rich picture of the three traditional Vietnamese religions: Confucianism, Buddhism, and Daoism. The work explains and evaluates several religious beliefs, customs, and rituals of eighteenth-century Vietnam, many of which are still in practice today. In addition, it contains a trove of information on the challenges and struggles that Vietnamese Christian converts had to face in following the new faith. Besides its great historical value for studies in Vietnamese religion, language, and culture, Gods, Heroes, and Ancestors raises complex issues concerning the encounter between Christianity and other religions: Christian missions, religious pluralism, and interreligious dialogue.
As the first full-length book of research in English, Our Lady of La Vang: History and Theology of a Vietnamese Devotion demonstrates that Our Lady is the ecclesial Mother of the Church in Vietnam and, at the same time, the ecclesial Mother of the universal Church. The title “Mother of the Church,” a title that only fully came into its own with Vatican II and the subsequent endorsement of the popes, especially Pope Francis, was inculturated in the uniqueness of Vietnamese Catholic belief and practice from the time of Our Lady’s first apparition. What we see in the story and the cult of Our Lady is a piety and theology of Mary as “Mother of the Church,” which, as it developed, also solidified an identity of Vietnamese Catholics as such. One reason is that, just as Our Lady said she would, she inspired fortitude and endurance under persecution. The persecution of Christians in Vietnam lasted through nearly the entire nineteenth century in one form or another. As the official theology of Mary, Mother of the Church, developed more at Vatican II and in its legacy, it found a home in the hearts of Vietnamese Catholics where Mary had already been inculturated as ecclesial Mother.
Contact in Structural Mechanics treats the problem of contact in the context of large deformations and the Coulomb friction law. The proposed formulation is based on a weak form that generalizes the classical principle of virtual powers in the sense that the weak form also encompasses all the contact laws. This formulation is thus a weighted residue method and has the advantage of being amenable to a standard finite element discretization. This book provides the reader with a detailed description of contact kinematics and the variation calculus of kinematic quantities, two essential subjects for any contact study. The numerical resolution is carried out in statics and dynamics. In both cases, the derivation of the contact tangent matrix – an essential ingredient for iterative calculation – is explained in detail. Several numerical examples are presented to illustrate the efficiency of the method.
Nonlinear Theory of Elastic Plates provides the theoretical materials necessary for the three plate models—Cosserat plates, Reissner-Mindlin plates and Kirchhoff-Love plates— in the context of finite elastic deformations. One separate chapter is devoted to the linearized theory of Kirchhoff-Love plates, which allows for the study of vibrations of a pre-stressed plate and the static buckling of a plate. All mathematical results in the tensor theory in curvilinear coordinates necessary to investigate the plate theory in finite deformations are provided, making this a self-contained resource. - Presents the tricky process of linearization, which is rarely dealt with, but explained in detail in a separate chapter - Organized in a mathematical style, with definitions, hypotheses, theorems and proofs clearly stated - Presents every theorem with its accompanying hypotheses, enabling the reader to quickly recognize the conditions of validity in results
Lagrangian Mechanics explains the subtleties of analytical mechanics and its applications in rigid body mechanics. The authors demonstrate the primordial role of parameterization, which conditions the equations and thus the information obtained; the essential notions of virtual kinematics, such as the virtual derivative and the dependence of the virtual quantities with respect to a reference frame; and the key concept of perfect joints and their intrinsic character, namely the invariance of the fields of compatible virtual velocities with respect to the parameterization. Throughout the book, any demonstrated results are stated with the respective hypotheses, clearly indicating the applicability conditions for the results to be ready for use. Numerous examples accompany the text, facilitating the understanding of the calculation mechanisms. The book is mainly intended for Bachelor's, Master's or engineering students who are interested in an in-depth study of analytical mechanics and its applications.
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