Crack Initiation Behavior of Abs Resin Under Mode I and Mixed Mode Loading

Husaini, Husaini; Notomi, Mitsuo; Kishimoto, Kenji; Shibuya, Tetsuo

doi:10.2472/jsms.46.9appendix_158

Cited by 6 publications

(8 citation statements)

References 2 publications

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“…Finally, what has to date not at all been considered in computational studies, and only in a very few experimental ones, e.g., Husaini et al (1997), is the fracture behavior of rubber-toughened polymers under mixedmode loading conditions.…”

Section: Discussionmentioning

confidence: 99%

Computational modeling of rubber-toughening in amorphous thermoplastic polymers: a review

Giessen

Seelig

2015

Int J Fract

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The fracture behavior of rubber-toughened polymers is governed by two dissipative microscopic deformation and damage mechanisms: matrix shear yielding and crazing. These mechanisms are strongly interconnected with the eventual cavitation of the fine dispersed rubber particles. The present work summarizes and discusses a variety of micromechanicalcomputational modeling approaches undertaken over the past twenty years aiming at an improved understanding of the relation between microstructure and toughening in this class of materials. The focus is on materials such as ABS where both mechanisms are prevalent.

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Section: Discussionmentioning

confidence: 99%

Computational modeling of rubber-toughening in amorphous thermoplastic polymers: a review

Giessen

Seelig

2015

Int J Fract

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“…Analisa lelah merupakan suatu cara yang dapat dilakukan untuk memperkirakan resiko terjadinya kerusakan yang diakibatkan oleh beban berulang dan dapat mengetahui usia dari suatu struktur atau komponen dalam menerima beban tersebut [11]. Secara umum diperkirakan 70-90% kegagalan suatu komponen atau struktur disebabkan oleh lelah, sehingga para peneliti telah mengakui permasalahan lelah ini sebagai masalah yang serius [9,12,13]. Dengan melakukan prediksi umur lelah, risiko timbulnya kerusakan total dapat diperkecil dan struktur dapat memenuhi target desain yang telah ditetapkan.…”

Section: Pengukuran Sinyal Reganganunclassified

Prediksi Umur Lelah Lower Suspension Arm Minibus yang Dikemudikan pada Permukaan Jalan Lurus dan Berbelok Berbasis Pendekatan Strain-Life

Zainal

Ajinar²

2022

jes

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In the previous studies, prediction of fatigue life at the lower suspension arm is only done based on strain signals obtained on a straight road. Considering the main function of the lower suspension arm is to stabilize the vehicle when turning, the purpose of this study is to predict the fatigue life of the lower suspension arm when the vehicle goes straight and turns clockwise and counterclockwise. The three roads are passed by vehicles with a speed of 30 km/hour. Measurement of strain signals is done by attaching a strain gauge to the lower suspension arm on the left side of the vehicle. Based on the simulation results based on the strain-life approach the lowest fatigue life is given by turning clockwise direction with 2.56E+6 cycles so that it breaks using the Coffin-Manson model. This value is low than the age of fatigue life when the vehicle goes straight and turns counterclockwise, each with 5.85E+6 cycles so it breaks and 5.08E+7 cycles so it breaks. This value is also comparable to that produced by the Morrow and SWT models. When the vehicle turns right, the lower suspension arm on the left side receives a strain that is greater than when the vehicle turns left, which is 5%. Strain received by the lower suspension arm can shorten the fatigue life of the component. Turning roads shorten the fatigue life of lower suspension arm so that 44% compared to straight roads.

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“…The experimental methods used are similar to those previously employed by Husaini et al (1997). The material used for all experiments was the aluminum alloy A6061-T6.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…In an Finite Element Method (FEM) analysis, Aoki et al (1987) concluded that shear fracture in an aluminum alloy becomes more pronounced as the mode II component increases. Studies of fracture behavior of polymer alloys under various mixed mode loadings showed that crack initiation occurs in the opening-type fracture followed by the transition fracture from the opening-type to the shear-type fracture (Husaini et al, 2001;Husaini et al, 2000;Husaini et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Mixed Mode Fracture Behavior of an Aluminum Alloy A6061 Investigated by using Compact Tension Shear Specimens

Husaini¹,

Zuhaimi²

2016

IJTech

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Aluminum alloys, such as A6061-T6, are widely used in engineering components. However, detailed knowledge is needed to understand the way they respond to a fracture due to mechanical loading. Fractures occur in the structural component from crack propagation, and it is important to understand the mixed mode fracture behavior of crack growth. In this research, mixed mode fracture testing was conducted on the aluminum alloy A6061-T6 by employing a compact tension shear specimen. Crack growth behavior was investigated by applying a quasistatic loading at a constant cross-head speed using a Servopulser universal testing machine. The crack growths were observed by a Keyence digital microscope, and the critical stress intensity factors of the material were examined. Results showed that the shear type of crack initiation preceded the opening-type fracture. , respectively, for the compact tension shear specimen. Crack propagation behavior with three small holes occurring in a zigzag pattern ahead of the crack tip showed that crack initiation and propagation occurred only in the opening-type fracture. The experimental data followed the maximum hoop stress criterion under mode I and mixed mode with a lower mode II component at a loading angle of 75 o . When the small holes occured inline, there were two types of fractures occurring: an opening fracture at crack initiation and then crack propagation caused by shear fracture.

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Crack Initiation Behavior of Abs Resin Under Mode I and Mixed Mode Loading

Cited by 6 publications

References 2 publications

Computational modeling of rubber-toughening in amorphous thermoplastic polymers: a review

Computational modeling of rubber-toughening in amorphous thermoplastic polymers: a review

Prediksi Umur Lelah Lower Suspension Arm Minibus yang Dikemudikan pada Permukaan Jalan Lurus dan Berbelok Berbasis Pendekatan Strain-Life

Mixed Mode Fracture Behavior of an Aluminum Alloy A6061 Investigated by using Compact Tension Shear Specimens

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