The microcrack zone concrete is deeply analyzed by using the exact solution of cracktipstressfield and is compared to the result from the local solution.
In this paper, the creep compliance of Hot-plate welded joint of PE80 pipe is measured, and the effect of creep on the cracktipstressfield in the weld is investigated.
本文测定了燃气用PE80管材热板焊接接头的蠕变柔量，研究了蠕变对焊缝裂尖应力场的影响。
3
First of all, the study on the cracktipstressfield under the model anchored by CFRP have been done, and then do a brief introduction about the failure mode of the model with the CFRP.