Abstract
The study of creep rupture and the life expectancy of structures has long been a subject of interest. The paper makes a brief survey of the continuum damage mechanics approach to this subject which began in the early fifties and has achieved quite satisfactory progress especially for metallic structures. In recent years due to the need for prolonging the lifetime of existing structures and the application of new materials, especially polymer materials, it is still under vigorous development. This paper begins from some early basic work, introduces the development of constitutive relations from uni-axial stress state to multi-axial stress state, and methods for calculating the creep life together with estimating it by upper and lower bounds. In an attempt to assess the creep rupture process of fiber reinforced composites, an analytic calculation of creep rupture lifetime of a bi-material 3-bar truss under vertical and horizontal loads is presented as an example. Finally, subjects for future research are mentioned.
Supported by National Natural Science Foundation of China
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Wang, R. (1999). On the Study of Creep Rupture of Structure. In: Wang, R. (eds) IUTAM Symposium on Rheology of Bodies with Defects. Solid Mechanics and its Applications, vol 64. Springer, Dordrecht. https://doi.org/10.1007/0-306-46937-5_21
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DOI: https://doi.org/10.1007/0-306-46937-5_21
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