Improvement of Low-Temperature Strength of Composite Bonded Joints Based on Residual Plastic Strain in Adhesive Layers

2021 ◽  
Vol 69 (4) ◽  
pp. 154-159
Author(s):  
Hisashi Kumazawa ◽  
Hiroki Nakagawa ◽  
Takeshi Ogawa
Keyword(s):  
Low Temperature ◽  
Plastic Strain ◽  
Bonded Joints ◽  
Adhesive Layers

Low-temperature plastic strain of ultrafine-grain aluminum

2008 ◽  
Vol 34 (8) ◽  
pp. 665-671 ◽  
Author(s):  
Yu. Z. Éstrin ◽  
N. V. Isaev ◽  
T. V. Grigorova ◽  
V. V. Pustovalov ◽  
V. S. Fomenko ◽  
...  
Keyword(s):  
Low Temperature ◽  
Plastic Strain ◽  
Ultrafine Grain

scholarly journals Stress Equations for Adhesive in Twodimensional Adhesively Bonded Joints/ Równania Naprężn W Plaskich Dwuwymiarowych Spoinach Klejowych

2014 ◽  
Vol 14 (3) ◽  
pp. 75-94
Author(s):  
Piotr Rapp
Keyword(s):  
Shear Stress ◽  
Shear Stresses ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Adhesive Layers ◽  
Axial Forces ◽  
Joint Plane ◽  
Base Functions ◽  
The Subject

Abstract The subject of this paper is formulation of shear stress equations for plane twodimensional adhesive layers present in adhesively bonded joints. The adherends are assumed to have the same thickness and be made of an isotropic material. The shape of the adherends in the joint plane is arbitrary. The adhesive joint can be subjected to a shear stress arbitrarily distributed on the adherends surfaces as well as normal and shear stresses arbitrarily distributed along the adherends edges. A set of two partial differential equations of the second order with shear stresses in the adhesive as unknowns has been formulated. For a particular case of rectangular joints a set of 12 base functions has been derived; their appropriate linear combinations uniquely define shear stresses in the adhesive for a joint loaded arbitrarily by a set of axial forces, bending moments and shear forces.

OS1704 Impact Strength of Adhesively Bonded Joints at Low Temperature

2014 ◽  
Vol 2014 (0) ◽  
pp. _OS1704-1_-_OS1704-2_
Author(s):  
Hiroki HATTORI ◽  
Sho MURAKAMI ◽  
Yu SEKIGUCHI ◽  
Chiaki SATO
Keyword(s):  
Low Temperature ◽  
Impact Strength ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints

Dynamic Effective Young's Modulus of Thin Adhesive Layers in Bonded Joints

1982 ◽  
Vol 10 (5) ◽  
pp. 192 ◽  
Author(s):  
R Horstman ◽  
KA Peters ◽  
RL Meltzer ◽  
M Bruce Vieth ◽  
N Ramakrishnan ◽  
...  
Keyword(s):  
Young’S Modulus ◽  
Young's Modulus ◽  
Bonded Joints ◽  
Adhesive Layers

Post Autofrettage Thermal Treatment and Its Effect on Re-Yielding of High Strength Pressure Vessel Steels

2009 ◽  
Author(s):  
E. Troiano ◽  
J. H. Underwood ◽  
A. P. Parker ◽  
C. Mossey
Keyword(s):  
Thermal Treatment ◽  
Low Temperature ◽  
Plastic Strain ◽  
Residual Stresses ◽  
Pressure Vessel ◽  
Pressure Vessels ◽  
Lower Amount ◽  
Isotropic Hardening ◽  
Maximum Pressure ◽  
Compressive Residual Stresses

The autofrettage process of a thick walled pressure vessel involves applying tensile plastic strain at the bore of the vessel which reverses during unloading and results in favorable compressive residual stresses at the bore and prolongs the fatigue life of the component. In thick walled pressure vessels this process can be accomplished with either a hydraulic or mechanical overloading process. The Bauschinger effect, which is observed in many of the materials used in thick walled pressure vessels, is a phenomenon which results in lower compressive residual stresses than those predicted with classic ideal isotropic hardening. The phenomenon is a strong function of the amount of prior tensile plastic strain. A novel idea which involves a multiple autofrettage process has been proposed by the present authors. This process requires a low temperature post autofrettage thermal treatment which effectively returns the material to its original yield conditions without affecting its residual stress state. Details of this low temperature thermal treatment are proprietary. A subsequent second autofrettage process generates a significantly lower amount of plastic strain during the tensile re-loading and results in higher compressive residual stresses. This paper reports the details of exploratory tests involving tensile and compressive loading of a test coupon, followed by a low temperature post plastic straining thermal treatment, and subsequent re-loading in tension and compression. Finally results of a full scale Safe Maximum Pressure (SMP) test of pressure vessels are presented; these tests indicate a significant increase (11%) in SMP.

Electrical, Mechanical, and Hermeticity Properties of Low-Temperature, Plasma Activated Direct Silicon Bonded Joints

2014 ◽  
Vol 64 (5) ◽  
pp. 275-284
Author(s):  
K. Schjolberg-Henriksen ◽  
N. Malik ◽  
E. V. Gundersen ◽  
O. R. Christiansen ◽  
K. Imenes ◽  
...  
Keyword(s):  
Low Temperature ◽  
Bonded Joints ◽  
Low Temperature Plasma ◽  
Temperature Plasma

scholarly journals Low Temperature Strength of Metal-FRP Bonded Joints

1991 ◽  
Vol 34 (2) ◽  
pp. 257-263
Author(s):  
Takao MORI ◽  
Qiang YU ◽  
Souji TAKAHANA ◽  
Masaki SHIRATORI
Keyword(s):  
Low Temperature ◽  
Bonded Joints

scholarly journals Electrical, Mechanical, and Hermetic Properties of Low-Temperature, Plasma Activated Direct Silicon Bonded Joints

2015 ◽  
Vol 4 (7) ◽  
pp. P265-P271 ◽  
Author(s):  
K. Schjølberg-Henriksen ◽  
N. Malik ◽  
E. V. Gundersen ◽  
O. R. Christiansen ◽  
K. Imenes ◽  
...  
Keyword(s):  
Low Temperature ◽  
Bonded Joints ◽  
Low Temperature Plasma ◽  
Temperature Plasma

scholarly journals Low-temperature strength of metal-FRP bonded joints.

1990 ◽  
Vol 56 (523) ◽  
pp. 437-445 ◽  
Author(s):  
Takao MORI ◽  
Qiang YU ◽  
Souji TAKEHANA ◽  
Masaki SHIRATORI
Keyword(s):  
Low Temperature ◽  
Bonded Joints
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