منابع مشابه
Failure Criteria Analysis of Laminate Composite Materials
This paper deals with the development of a numerical simulation methodology for estimating damages in laminate composite materials caused by a low-speed impact. Experimental tests were performed on laminate plates reinforced with woven carbon fibers and epoxy resin. Three thickness plates were evaluated. The impact loads were transversal and punctual. Two lamina failure criteria were evaluated....
متن کاملProposals for a Failure Criterion Applicable to Discontinuous Rocks
The existing failure criteria to evaluate discontinuous rocks are predominatly based on the relations between principal stresses at failure. None of the criteria has a direct reference to the magnitude of deformation as a major parameter in rock Several reasons are identified indicating that the selection of peak stress as a major parameter, which is obtained through the evaluation of a failure...
متن کاملNumerical Simulation of the Failure Process of Rocks
The initiation, development and coalescence of fractures have been studied by various researchers. The current consensus is that such complex process is however not yet fully understood. In the present study, a numerical model, based on finite element approach, has been developed to simulate the fracture process when the specimen is under compression. The heterogeneous nature of the rocks is al...
متن کاملFailure of Rocks in the Laboratory and in the Earth
Although rocks, at least some of them, are nearly as old as the Earth itself, their behavior continues to play an important role in a variety of applications and phenomena of societal interest. These include natural disasters, such as landslides, volcanic eruptions and earthquakes. Rocks are widely used for building materials, foundations, tunnels and underground facilities. Most of the worlds...
متن کاملA 3D Discrete Element Analysis of Failure Mechanism of Shallow Foundations in Rocks
In this research work, a 3D numerical modeling technique is proposed based on the 3D particle flow code in order to investigate the failure mechanism of rock foundations. Two series of footings with different geometries and areas are considered in this work. The failure mechanism obtained is similar to that of the Terzaghi’s but there is a negligible difference in between. Lastly, one equation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1971
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.20.143