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Keywords: plastic deformation
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Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2011, 78(5): 051003.
Published Online: July 27, 2011
... and at 4 μ s for BORO-9) are a result of wave reflections at the impactor-target interface. 15 10 2010 06 05 2011 27 07 2011 27 07 2011 ballistics brittleness densification fracture toughness glass high-pressure effects impact (mechanical) plastic deformation shear...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. July 2011, 78(4): 041019.
Published Online: April 15, 2011
... results, and the role of dislocation obstacles is interpreted in terms of their spatial density. Simulations provide insight into yielding and plastic deformation of indented single-crystal materials, and establish a basis for developing coarse-grained plasticity models of localized contact deformation...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2010, 77(3): 031002.
Published Online: January 26, 2010
... at cell level while maintaining the history of plastic deformation at ligament level. First, the phenomenological elastoplastic constitutive behavior of the ligaments composing the unit cell is modeled. Then, using the constitutive ligament model, the effective unit cell response is obtained from...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021014.
Published Online: December 14, 2009
.... , Talwar , R. , and Lederich , R. , 2007 , “ Analysis and Convenient Formulas for Elasto-Plastic Contacts of Nominally Flat Surfaces: Average Gap, Contact Area Ratio, and Plastically Deformed Volume ,” Tribol. Lett. 1023-8883 , 28 ( 1 ), pp. 27 – 38 . 10.1007/s11249-007-9244-7 Chen...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2009, 76(6): 061010.
Published Online: July 23, 2009
... and dissipation effects. The study provides a basis to predict the particle impact damping containing plastic deformation and to model the impact damped vibration system enrolling microparticles as a damping agent. Thornton ( 7 ) found that the coefficient of restitution obtained from Stronge’s model ( 6...
Journal Articles
Article Type: Advances In Impact Engineering
J. Appl. Mech. September 2009, 76(5): 051306.
Published Online: June 15, 2009
.... , 1979 , “ Determining the Thermal Activation Parameters of Plastic Deformation of Metals From Data on the Kinetics of Creep and Relaxation of Mechanical Stresses ,” Strength Mater. 0039-2316 , 11 ( 5 ), pp. 496 – 500 . 10.1007/BF00767575 Zikry , M. , and Kao , M. , 1997...
Journal Articles
Article Type: Advances In Impact Engineering
J. Appl. Mech. September 2009, 76(5): 051305.
Published Online: June 15, 2009
.... alumina ceramics grain size hardness impact (mechanical) microcracks plasticity alumina sphere impact grain size microcracks plastic deformation constraint hardness When confined within a metallic medium, ceramics have sufficient dynamic strength in compression to deform...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2008, 75(6): 061021.
Published Online: August 22, 2008
... subsequently calibrated by finite element calculations. The results show that the ratio of scratch force to normal force (or apparent friction coefficient) can be partitioned into two additive components: one due to interfacial friction and another associated with plastic deformation. The plastic component...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. November 2008, 75(6): 061011.
Published Online: August 20, 2008
... a value that considers both hysteresis due to the plastic deformation and viscoelastic (rate-dependent) sources of energy dissipation during collision. 22 11 2007 11 03 2008 20 08 2008 Stronge , W. J. , 1990 , “ Rigid Body Collisions With Friction ,” Proc. R. Soc. London...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2008, 75(3): 031009.
Published Online: April 8, 2008
... − F + A Γ ) + ( 1 − f ) ( E − G + A Ω ) ] : ε 0 The overall plastic behavior of Al-based amorphous nanocomposites is attributed to the plastic deformation in the amorphous matrix since it is observed that the α - Al fcc nanoparticles contain...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2008, 75(3): 031006.
Published Online: April 4, 2008
... ). The latter applied a linear fracture mechanics approach and proposed a method for the determination of the interfacial toughness. When the coating film is ductile, plastic deformation occurs largely under and near the indenter. In those cases, the linear fracture mechanics approach cannot be applied, since...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2008, 75(2): 021021.
Published Online: February 27, 2008
...W. Wayne Chen; Q. Jane Wang; Fan Wang; Leon M. Keer; Jian Cao Accumulative plastic deformation due to repeated loading is crucial to the lives of many mechanical components, such as gears, stamping dies, and rails in rail-wheel contacts. This paper presents a three-dimensional numerical model...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2008, 75(1): 011005.
Published Online: January 11, 2008
... shot peening by hard small particles (usually ceramics balls with diameter of about 2 R 0 ≈ 1 [ mm ] ) as shown in Fig. 1 . The solid is affected by being plastically deformed in a relatively thin layer adjacent to the free surface. Each ball, after impacting and bouncing off...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. January 2008, 75(1): 011009.
Published Online: January 11, 2008
... paint was not applied to specimens (for case ( a ): the sample I F 12 ∼ 0.06 ; and the sample II F 12 ∼ 0.03 ). 18 09 2006 16 02 2007 11 01 2008 polymers plastic deformation infrared detectors photodetectors infrared spectra compressive testing...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. September 2007, 74(5): 898–907.
Published Online: November 3, 2006
... of MHS materials with a regular structure. A structural approach using the concept of an equivalent structure is employed to describe the large plastic deformations during the post-collapse process under compression when the spheres have point connections between them. In the theoretical analysis...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2007, 74(4): 717–722.
Published Online: August 15, 2006
...Alexander M. Korsunsky; Gabriel M. Regino Autofrettage is a treatment process that uses plastic deformation to create a state of permanent residual stress within thick-walled tubes by pressurizing them beyond the elastic limit. The present paper presents a novel analytical approach...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2007, 74(4): 636–644.
Published Online: April 19, 2006
.... , 2004 , “ Large Plastic Deformation of Metallic Honeycomb: Orthotropic Rate-Independent Constitutive Model ,” Int. J. Solids Struct. 0020-7683 10.1016/j.ijsolstr.2004.02.062 , 41 , pp. 4435 – 4456 . Rabczuk , T. , Kim , J. K. , Samaniego , E. , and Belytschko , T. , 2004...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. November 2006, 73(6): 970–976.
Published Online: December 19, 2005
... and plastic strains E ln e = E ln − E ln p , where plastic strains may be associated with a plastic deformation gradient F p through 13 E ln p = ln ( F p T F p ) 1 ∕ 2 usually associated with a stress free intermediate configuration...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. January 2007, 74(1): 81–99.
Published Online: December 2, 2005
... of many such comparative simulations. 09 06 2005 02 12 2005 structural panels sandwich structures honeycomb structures metals plastic deformation bending shearing indentation cavitation The response of metallic sandwich panels to the impulse caused by underwater blast...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. March 2006, 73(2): 327–334.
Published Online: August 1, 2005
... load or fixed displacement experiments. Nanoindentation of Fe-3% Si (100) crystals with various oxide film thicknesses supports the proposed approach. 27 08 2004 01 08 2005 iron alloys silicon alloys nanoparticles indentation plastic deformation mechanical stability dislocation...