Progressive failure of notched and unnotched composites under biaxial tension compression 5a
Progressive failure of notched and unnotched composites under biaxial tension compression 5a
... fiber failure 900 Tensile Fiber failure 00 00 B.I ! 900 B.III B.II MATRIX FAILURE FIBER COMPRESSIVE FAILURE FIBER TENSILE FAILURE Figure 56 Progressive failure of on-axis biaxial loading of unnotched ... displacement 300 OFF-AXIS BIAXIAL LOADING OF FINITE ELEMENT [30/-60] 2S DIGITAL IMAGE CORRELATION 150 OFF-AXIS BIAXIAL LOADING OF OPEN-HOLE CROSSPLY LAMINATES 15...
Ngày tải lên: 09/09/2015, 08:19
Progressive failure of notched and unnotched composites under biaxial tension compression 1
... Experimental results 98 5 .1 Behavior of unnotched crossply laminates 98 5 .1. 1 5 .1. 2 Biaxial tension- compression strength comparison 10 0 5 .1. 3 Strain evolutions 10 1 5 .1. 4 Failure progression ... .9 1. 5 .1 1.5.2 1. 6 Digital Image Correlation Technique 10 2D Image Correlation Technique 10 Micromechanics of Failure Theory 13 1. 6 .1 Micro Stress and Macro...
Ngày tải lên: 09/09/2015, 08:18
Progressive failure of notched and unnotched composites under biaxial tension compression 6
... Design of a cruciform specimen for biaxial testing of fibre reinforced composite laminates Composites Science and Technology, 20 06 66( 7-8): p 964 -975 Welsh J S, J S Mayes, and A C Biskner, 2-D biaxial ... Journal of Composite Materials, 1991 25(5): p 5 56- 577 54 Tan S C, & Perez J, Progressive Failure of Laminated Composites with a Hole under Compressive Loading...
Ngày tải lên: 09/09/2015, 08:18
Progressive failure of notched and unnotched composites under biaxial tension compression 2
... displacement of horizontal arms of test specimen ! A ! B A 2 AC = BC2 AC2 = AB2 + AB + BC A’ A’ (A’C’ )2 = (AB−2dh )2 + (BC+dh )2 2 (A’C’) = (AB−2dh) + (BC+dh )2 (AB−2dh) θ Bθ C (AB−2dhB ) (BC+dh) ... 0.04 04 IN 0.10 0.10 0 .2 AIN 0 .2 0. 02 05 0. 02 05 - 0.03 - 0.03 0.03 04 0.03 04 -0 -0 300 OFF-AXIS BIAXIAL LOADING OF 30 - 0. 02 30 0.1 300 OFF-AXIS - 0. 02 BIAXIAL LOAD...
Ngày tải lên: 09/09/2015, 08:18
Progressive failure of notched and unnotched composites under biaxial tension compression 3
... Φopen-hole Failure stresses (MPa) (=σopen-hole/ unnotched) θ/0 σx σy Φx Φy 33 8.81 -427.81 0 .36 0.46 15 31 6.45 -4 23. 47 0.66 0.76 30 186 .38 -141 .31 1.19 0.65 ! !59 Chapter Open-hole biaxial tests ... -0.05 -0.04 -0. 03 300 OFF-AXIS BIAXIAL LOADING OF -0.02 -0.01 0.01 0.02 OPEN-HOLE CROSSPLY LAMINATES [30 /-60] 2S STRAIN Glass tabs -0.01 0.01 0.02 0. 03 OFF-AXIS BIAXIAL LOA...
Ngày tải lên: 09/09/2015, 08:18
Progressive failure of notched and unnotched composites under biaxial tension compression 4a
... Number of 3D elements 57,924 Unnotched Open-hole 48,083 97,147 90,917 in section 1.9 !70 Chapter Numerical Analysis An average of 54,350 and 87,377 3D elements were used in the unnotched and open-hole ... while dm and df are the degradation factor for matrix and fiber dominated damage which are determined based on equations (4.5) and (4.6) and Figure 37 The compressive un...
Ngày tải lên: 09/09/2015, 08:18
Progressive failure of notched and unnotched composites under biaxial tension compression 4b
... Fiber Failure 0.5 er Failure 0.4 r Failure er Failure 0.3 0.05 εyy 0.5 -750 Ply Fiber Failure 0.4 150 Ply Fiber Failure -750 Ply Fiber Failure 0.3 Biaxial loading of open-hole crossply laminates Biaxial ... Φopen-hole, due to the offaxis loading angle and the presence of the circular hole in the notched laminates, respectively Table 11 Predicted biaxial strengths...
Ngày tải lên: 09/09/2015, 08:19
Progressive failure of notched and unnotched composites under biaxial tension compression 5b
... Fiber failure in 300 ply Un -notched Crossply Laminates loaded biaxially at 300 off-axis 300 -600 300 A.I A.II A.III Final failure 300 -600 300 B.I B.III B.II ! UNDAMAGED MATRIX FAILURE Figure 58 Progressive ... B.I B.III B.II ! UNDAMAGED MATRIX FAILURE Figure 58 Progressive failure of unnotched crossply laminates biaxially loaded at 300 off-axis A.I-A.III at 0.225 mm appli...
Ngày tải lên: 09/09/2015, 08:19
Progressive failure of notched and unnotched composites under biaxial tension compression 5c
... Biaxial loading of open-hole crossply laminates ! ! Biaxial loading of open-hole crossply laminatesloading of open-hole crossply laminates Biaxial 300 OFF-AXIS BIAXIAL LOADINGELEMENT FINITE OF ... results ! ! ! Biaxial loading of open-hole crossply laminates ! ! Biaxial loading of open-hole crossply laminates Biaxial loading of open-hole crossply laminates 300 OFF-...
Ngày tải lên: 09/09/2015, 08:20
Synergistic combination of heat and ultrasonic waves under pressure for cronobacter sakazakii inactivation in apple juice
... resistance to heat, MS, and MTS in apple juice Fig shows the C sakazakii inactivation rates by heat (dT values) and ultrasound under pressure at non-lethal (dMS values) and lethal Table Heat and MS/MTS ... reducing microbial population than heat acting alone For instance, whereas 0.86 are needed under a heat treatment at 56 C for inactivating 90% of th...
Ngày tải lên: 05/05/2014, 08:43
Study on failure of surface and interface of the laminated composite structures of a small ship
... Doctor of Philosophy Study on the failure of surface and interface of the laminated composite structures of a small ship The Graduate School of the University of Ulsan Department of Mechanical Engineering ... position, area and propagation standard Evaluation of quality of gelcoat surface by roughness values, microphotographs of surfa...
Ngày tải lên: 12/03/2015, 15:31
AN EVALUATION OF THE COURSEBOOK “ENGLISH FOR INFORMATION TECHNOLOGY I” FOR SECOND–YEAR STUDENTS OF UNIVERSITY OF INFORMATION AND COMMUNICATION TECHNOLOGY UNDER THAI NGUYEN UNIVERSITY
... “ENGLISH FOR INFORMATION TECHNOLOGY I” FOR SECOND–YEAR STUDENTS OF UNIVERSITY OF INFORMATION AND COMMUNICATION TECHNOLOGY UNDER THAI NGUYEN UNIVERSITY (Đánh giá giáo trình “Tiếng Anh chuyên ngành ... are the answers to the question whether the coursebook “English for IT I” is relevant to the needs of second-year students of Facul...
Ngày tải lên: 15/07/2015, 13:03
An Evaluation of the coursebook “English for Information Technology I” for second–year students of University of Information and Communication Technology under Thai Nguyen University
... “ENGLISH FOR INFORMATION TECHNOLOGY I” FOR SECOND–YEAR STUDENTS OF UNIVERSITY OF INFORMATION AND COMMUNICATION TECHNOLOGY UNDER THAI NGUYEN UNIVERSITY (Đánh giá giáo trình “Tiếng Anh chuyên ngành ... are the answers to the question whether the coursebook “English for IT I” is relevant to the needs of second-year students of Facul...
Ngày tải lên: 15/07/2015, 16:39
Joint modelling of survival and longitudinal data under nested case control sampling
... the survival if a nested case- control (NCC) sampling is performed using this cohort and this will be explored through our approach of joint modeling 4.2 Covariates and the Nested Case- Control Sampling ... findings and discusses areas for further research 11 Chapter Joint Modeling under Nested Case- Control Sampling 2.1 Notation and Model Specifications...
Ngày tải lên: 02/10/2015, 17:15