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An inelastic analysis methodology fo...

Smeltzer, Stanley S., III.

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An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends./
作者:	Smeltzer, Stanley S., III.
面頁冊數:	142 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0412.
Contained By:	Dissertation Abstracts International65-01B.
標題:	Engineering, Mechanical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3119211
ISBN:	0496666098

An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends.
Smeltzer, Stanley S., III.

An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends. - 142 p.

Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0412.

Thesis (Ph.D.)--North Carolina State University, 2003.

The development of a one-dimensional analysis method for evaluating adhesively bonded joints composed of anisotropic adherends and adhesives that exhibit nonlinear material behavior is presented. The strain and resulting stress field in a general, bonded joint overlap are determined by using a variable-step, finite-difference solution algorithm to iteratively solve a system of first-order differential equations. Applied loading is given by a system of combined extensional, bending, and shear loads that are applied to the edge of the joint overlap. Adherends are assumed to behave as linear, cylindrically-bent plates using classical laminated plate theory that includes the effects of first-order transverse shear deformation. This provides a capability for modeling differences in the transverse shear modulus between each adherend. Using the deformation theory of plasticity and a modified von-Mises yield criterion, inelastic material behavior is modeled in the adhesive layer. Results for the proposed method are verified using the single-lap joint geometry against previous results from the literature and shown to be in excellent agreement. Convergence of the strain and stress fields determined using the finite-difference solver are described as a function of the number of evaluation points along the length of the joint. Additionally, design studies using the single-lap joint are presented that investigate the effects of changes to the joint overlap, adherend thickness, laminate stacking sequence of the adherend, adherend material properties, and adhesive material properties. Results from the design studies established a nonlinear relationship between changes in the bending and axial stiffness of the adherends due to laminate ply manipulations and a reduction in the inelastic adhesive strain and shear stress responses. Additionally, a minimal effect on the adhesive strain and stress responses was demonstrated by the results from the bonded joint models that had a difference between the transverse shear stiffness of the upper and lower adherends.

ISBN: 0496666098Subjects--Topical Terms:

783786
Engineering, Mechanical.

An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends.
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245 1 3 $a An inelastic analysis methodology for bonded joints with shear deformable, anisotropic adherends.
300 $a 142 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-01, Section: B, page: 0412.
500 $a Director: Eric C. Klang.
502 $a Thesis (Ph.D.)--North Carolina State University, 2003.
520 $a The development of a one-dimensional analysis method for evaluating adhesively bonded joints composed of anisotropic adherends and adhesives that exhibit nonlinear material behavior is presented. The strain and resulting stress field in a general, bonded joint overlap are determined by using a variable-step, finite-difference solution algorithm to iteratively solve a system of first-order differential equations. Applied loading is given by a system of combined extensional, bending, and shear loads that are applied to the edge of the joint overlap. Adherends are assumed to behave as linear, cylindrically-bent plates using classical laminated plate theory that includes the effects of first-order transverse shear deformation. This provides a capability for modeling differences in the transverse shear modulus between each adherend. Using the deformation theory of plasticity and a modified von-Mises yield criterion, inelastic material behavior is modeled in the adhesive layer. Results for the proposed method are verified using the single-lap joint geometry against previous results from the literature and shown to be in excellent agreement. Convergence of the strain and stress fields determined using the finite-difference solver are described as a function of the number of evaluation points along the length of the joint. Additionally, design studies using the single-lap joint are presented that investigate the effects of changes to the joint overlap, adherend thickness, laminate stacking sequence of the adherend, adherend material properties, and adhesive material properties. Results from the design studies established a nonlinear relationship between changes in the bending and axial stiffness of the adherends due to laminate ply manipulations and a reduction in the inelastic adhesive strain and shear stress responses. Additionally, a minimal effect on the adhesive strain and stress responses was demonstrated by the results from the bonded joint models that had a difference between the transverse shear stiffness of the upper and lower adherends.
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