In this paper a semi-elliptic surface crack problem in an elastic solid of finite size under impact loading is investigated. An analysis is performed by means of fracture dynamics and the finite element method, and a ...In this paper a semi-elliptic surface crack problem in an elastic solid of finite size under impact loading is investigated. An analysis is performed by means of fracture dynamics and the finite element method, and a three-dimensional finite element program is developed to compute the dynamic stress intensity factor. The results reveal that the effects of the solid＇s boundary surface, crack surface, material inertia and stress wave interactions play significant roles in dynamic fracture.展开更多
Electronic truck scale, mainly used in the field of bulk goods, using scientific and effective methods to accurately weigh, ensure the accuracy of test results, while improving. On this basis summarized the applicatio...Electronic truck scale, mainly used in the field of bulk goods, using scientific and effective methods to accurately weigh, ensure the accuracy of test results, while improving. On this basis summarized the application of electronic truck scale, application analysis to determine common detection methods, on the basis of the electronic truck scale on the actual error of the solution measures are optimized, and the practical application is prospected.展开更多
基金Project supported by the National Natural Science Foundation of China (No.10176003).
文摘In this paper a semi-elliptic surface crack problem in an elastic solid of finite size under impact loading is investigated. An analysis is performed by means of fracture dynamics and the finite element method, and a three-dimensional finite element program is developed to compute the dynamic stress intensity factor. The results reveal that the effects of the solid＇s boundary surface, crack surface, material inertia and stress wave interactions play significant roles in dynamic fracture.
文摘Electronic truck scale, mainly used in the field of bulk goods, using scientific and effective methods to accurately weigh, ensure the accuracy of test results, while improving. On this basis summarized the application of electronic truck scale, application analysis to determine common detection methods, on the basis of the electronic truck scale on the actual error of the solution measures are optimized, and the practical application is prospected.
