孙直

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:力学与航空航天学院

学科:工程力学. 固体力学. 计算力学

办公地点:综合实验1号楼508

联系方式:邮件或手机壹伍玖零肆玖伍陆贰捌陆

电子邮箱:zhisun@dlut.edu.cn

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含金属内衬的复合材料缠绕薄壁容器自紧设计的工程方法

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发表时间:2011-01-01

发表刊物:复合材料学报

所属单位:运载工程与力学学部

卷号:28

期号:2

页面范围:217-221

ISSN号:1000-3851

摘要:Based on thin-wall vessel theory and null-unloading-residual-strain
   assumption, a simplified engineering formula for autofrettage pressure
   of composite overwrapped pressure vessels (COPV) was deduced, in which
   the effects of bilinear isotropic and kinetic hardening behavior for
   metal inner were considered respectively. The validity of the
   engineering formula was verified through comparing with FEM. As an
   example, the residual strain field after autofrettage technique and
   corresponding stress field under the service loading case for a typical
   COPV were studied. The results indicate that the load capacity of COPV
   significantly increases by means of the autofrettage technique provide
   in this paper

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