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neutron and X-ray residual stress measurements on Al-2219 welded plate[J]. Materials Science and Engineering A, 1997, 224(1/2): 157-165. [2] 李智伟, 刘新超, 边 毅, 周 楠. 低压铸造凝固条件对A357合金组织及力学性能影响[J]. 铸造, 2014......
度为245 MPa,伸长率则降至4.2%,与纯银相比,抗拉强度提高了了近1倍,屈服强度提高了近10倍. 图8 不同MWCNTs体积分数的MWCNTs/Ag应力–应变曲线 Fig. 8 Tensile stress–strain curves of MWCNTs/Ag composites with various volume fractions of MWCNTs 表1......
, 彭立敏, 施成华, 等. 浅埋偏压隧道衬砌受力特征及破坏机制试验研究[J]. 中南大学学报(自然科学版), 2013, 44(8): 3316-3325.LEI Mingfeng, PENG Limin, SHI Chenghua, et al. Model research on failure mechanism and lining stress characteristics......
of longwall mining-induced stress using the strain energy method [J]. Rock Mechanics and Rock Engineering, 2015, 48(6): 2421-2433. [7] PENG S S. Coal mine ground control [M]. 3rd ed. Xuzhou: China University......
, 18(2): 323-329. [23] NELSON J C, ORIANI R A. Stress generation during anodic oxidation of titanium and aluminum[J]. Corrosion Science, 1993, 34(2): 307-326. Effects of laser heat treatment......
, 2004: 10-18. [2] 葛伟凤, 陈勉, 金衍, 等. 深部盐膏岩地层套管磨损后等效应力分析[J]. 中国石油大学学报(自然科学版), 2013, 37(1): 75-79. GE Weifeng, CHEN Mian, JIN Yan, et al. Analysis of equivalent stress on casings after casing wear in deep salt......
in tri-axial unloading test, the complete stress-strain curves, deformation characteristics and energy characteristics were obtained. The dilatancy angle was used to describe the dilatancy...-应变曲线.从图1可以看出:在加轴压卸围压过程中,轴向应变εax均增大但增大速度极缓慢,而侧向应变εl迅速增大,侧向应变增量为轴向应变增量的10倍左右.由于侧向的膨胀变形量比轴向的压缩变形量大,导致体积应变εv由正转变为负值,说明岩样发生体积扩容,表现为侧向张拉破坏,最终导致岩样发生宏观破坏. 图1 卸载试验下岩石的应力-应变曲线 Fig. 1 Stress-strain......
is pyrite with two-stage mineralization. The largest size of early-stage pyrite particles is about 5 mm, and their average size is about 2 mm. They are fragmented as a result of the stress action. Unlike......
]. Journal of Water Resource Research, 1973, 9(5): 1314–1323. [20] WANG Shuang-jie, HUANG Xiao-ming, HOU Shu-guang. Numerical analyses of pavement deformation and stress in permafrost regions [J]. Journal......
. [21] C H. 3D FEM simulation of steel quenching and investigation of the effect of asymmetric geometry on residual stress distribution [J]. Journal of Materials Processing Technology, 2008, 207......