Comparison of Brazed Residual Stress and Thermal Deformation between X-Type and Pyramidal Lattice Truss Sandwich Structure: Neutron Diffraction Measurement and Simulation Study

被引：3

作者：

Jiang, Wenchun ^{[1
,2
]}

Wei, Zhiquan ^{[3
]}

Luo, Yun ^{[3
]}

Zhang, Weiya ^{[3
]}

Woo, Wanchuck ^{[2
]}

机构：

[1] China Univ Petr East China, Coll Chem Engn, Qingdao 266580, Peoples R China

[2] Korea Atom Energy Res Inst, Div Neutron Sci, 1045 Daedeok Daero, Daejeon 305353, South Korea

[3] China Univ Petr East China, Coll Chem Engn, Qingdao 266555, Peoples R China

来源：

HIGH TEMPERATURE MATERIALS AND PROCESSES | 2016年 / 35卷 / 06期

基金：

中国国家自然科学基金;

关键词：

lattice truss sandwich structure; brazed residual stress; deformation; JOINTS; CREEP; FIELDS; CORES; STEEL;

D O I：

10.1515/htmp-2015-0046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper uses finite element method and neutron diffraction measurement to study the residual stress in lattice truss sandwich structure. A comparison of residual stress and thermal deformation between X-type and pyramidal lattice truss sandwich structure has been carried out. The residual stresses are concentrated in the middle joint and then decreases gradually to both the ends. The residual stresses in the X-type lattice truss sandwich structure are smaller than those in pyramidal structure. The maximum longitudinal and transverse stresses of pyramidal structure are 220 and 202 MPa, respectively, but they decrease to 190 and 145 MPa for X-type lattice truss sandwich structure, respectively. The thermal deformation for lattice truss sandwich panel structure is of wave shape. The X-type has a better resistance to thermal deformation than pyramidal lattice truss sandwich structure. The maximum wave deformation of pyramidal structure (0.02 mm) is about twice as that of X-type (0.01 mm) at the same brazing condition.

引用

页码：567 / 574

页数：8

共 3 条

[1] Numerical modelling and nanoindentation experiment to study the brazed residual stresses in an X-type lattice truss sandwich structure
Jiang, Wenchun
Chen, H.
Gong, J. M.
Tu, S. T.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14): : 4715 - 4722
[2] Nonlinear buckling behavior of X-type lattice sandwich structures with thermal residual stress
Huang, Huai-Wei (cthwhuang@scut.edu.cn), 1600, South China University of Technology (42):
[3] Numerical investigating the effect of braze processing parameters on residual stresses in an X-type lattice truss sandwich structure
Jiang, Wenchun
Gong, Jianming
Tu, Shan-Tung
STRUCTURAL INTEGRITY AND MATERIALS AGEING IN EXTREME CONDITIONS, 2010, : 341 - 348

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