Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Düsseldorf
VDI-Verl.
2014
|
| Edition: | Als Ms. gedr. |
| Series: | Fortschritt-Berichte VDI
Reihe 5, Grund- und Werkstoffe, Kunststoffe ; 755 |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | X, 145 S. Ill., graf. Darst. |
| ISBN: | 9783183755059 |
Staff View
MARC
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| 245 | 1 | 0 | |a Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions |c Songyun Ma |
| 250 | |a Als Ms. gedr. | ||
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Record in the Search Index
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|---|---|
| adam_text | CONTENTS
ABSTRACT VII
ZUSAMMENFASSUNG IX
1 INTRODUCTION 1
1.1 BACKGROUND AND MOTIVATIONS 2
1.2 RESEARCH OBJECTIVE 3
1.3 OUTLINE OF THE THESIS 5
2 REVIEW OF EXISTING DAMAGE MODELS 6
2.1 INTRODUCTION 6
2.2 DAMAGE MODELS UNDER MONOTONIC LOADING 7
2.2.1 THE GURSON-TVERGAARD-NEEDLEAN MODEL 7
2.2.2 CONTINUUM DAMAGE MODEL 9
2.3 DAMAGE MODELS UNDER CYCLIC LOADING 12
2.3.1 CHABOCHE FATIGUE DAMAGE MODEL 13
2.3.2 BONORA DAMAGE MODEL FOR LCF 14
2.3.3 JIANG S FATIGUE DAMAGE MODEL 14
2.4 APPLICATION OF DAMAGE MODELS IN POROUS SINTERED METALS 16
3 EXPERIMENTAL INVESTIGATION OF DAMAGE EVOLUTION ON SINTERED METALS 19
3.1 MATERIAL AND SPECIMEN FABRICATION 19
3.2 EXPERIMENTAL MEASUREMENT OF DAMAGE 23
3.3 DAMAGE EVOLUTION IN UNIAXIAL TESTS 26
3.4 DAMAGE EVOLUTION UNDER MULTI-AXIAL LOADING 27
3.5 MICROMECHANICAL ANALYSIS OF DAMAGE EVOLUTION 31
3.5.1 XFEM AND COHESIVE ZONE MODEL 32
3.5.2 MICROSTRUCTURE MODEL AND SIMULATION PROCEDURE 35
3.5.3 COMPUTATIONAL RESULTS 36
3.6 CONCLUDING REMARKS 40
4 DEVELOPMENT OF CONTINUUM DAMAGE MODEL UNDER MONOTONIC LOADING 42
4.1 THERMODYNAMICS FRAMEWORK 42
4.2 FORMULATION OF DAMAGE EVOLUTION LAW 43
4.2.1 ADDITIVE REPRESENTATION OF DAMAGE 43
4.2.2 ELASTIC DAMAGE EVOLUTION 44
4.2.3 PLASTIC DAMAGE EVOLUTION 47
4.3 IDENTIFICATION OF MODEL PARAMETERS 48
4.4 VERIFICATION OF THE CDM MODEL WITH ANALYTICAL SOLUTIONS 51
4.5 MACHINING EFFECTS ON THE DAMAGE EVOLUTION 54
V
HTTP://D-NB.INFO/106304295X
CONTENTS
4.5.1 THE DAMAGE EVOLUTION LAW WITH INITIAL DAMAGE 54
4.5.2 FAILURE PREDICTION OF THE CDM MODEL 55
4.6 CONCLUDING REMARKS 56
5 NUMERICAL IMPLEMENTATION OF CDM MODEL UNDER MONOTONIC LOADING 58
5.1 ALGORITHMS AND IMPLEMENTATION IN FEM 58
5.2 TREATMENT OF THE DAMAGE VARIABLE BEYOND THE CRITICAL DAMAGE 60
5.3 CONSISTENT TANGENT OPERATOR 60
5.4 NUMERICAL VERIFICATION 63
6 COMPUTATIONAL RESULTS OF DAMAGE MODEL UNDER MONOTONIC LOADING 66
6.1 MESH DEPENDENCY OF COMPUTATION RESULTS 66
6.2 COMPUTATIONS OF TUBULAR SPECIMENS UNDER PROPORTIONAL LOADING 68
6.3 DAMAGE EVOLUTION UNDER NON-PROPORTIONAL LOADING 70
6.4 DAMAGE IN HOLED SPECIMENS 72
6.5 DAMAGE IN NOTCHED SPECIMENS 74
6.6 CONCLUDING REMARKS 77
7 MULTIAXIAL FATIGUE LIFE ASSESSMENT 79
7.1 EXPERIMENTAL PROGRAM 80
7.2 CYCLIC DEFORMATION 82
7.3 FRACTOGRAPHIC ANALYSIS 87
7.4 FATIGUE BEHAVIOR UNDER UNIAXIAL LOADING 88
7.5 MULTIAXIAL FATIGUE LIFE PREDICTION WITH CRITICAL PLANE CONCEPT 90
7.5.1 STRAIN-BASED MODEL 91
7.5.2 ENERGY-BASED MODEL 94
7.5.3 CRITICAL PLANE MODELS 97
7.5.4 CRACKING BEHAVIOR 106
7.6 COMPARISON AND DISCUSSION OF MULTIAXIAL FATIGUE MODELS 107
7.7 CONCLUDING REMARKS 110
8 CONTINUUM DAMAGE MODEL OF FATIGUE DAMAGE EVOLUTION 114
8.1 DAMAGE EVOLUTION UNDER UNIAXIAL CYCLIC LOADING 115
8.2 FORMULATION OF FATIGUE DAMAGE EVOLUTION LAW 116
8.3 THE FATIGUE DAMAGE MODEL COUPLED WITH CYCLIC PLASTICITY 119
8.4 NUMERICAL IMPLEMENTATION 121
8.5 IDENTIFICATION OF MODEL PARAMETERS 128
8.6 VERIFICATION OF DAMAGE EVOLUTION AND LIFE ESTIMATION 129
8.7 CONCLUDING REMARKS 132
9 CONCLUSIONS AND DISCUSSIONS 133
BIBLIOGRAPHY 138
PUBLICATION LIST 145
VI
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| any_adam_object | 1 |
| author | Ma, Songyun |
| author_GND | (DE-588)1060581124 |
| author_facet | Ma, Songyun |
| author_role | aut |
| author_sort | Ma, Songyun |
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| building | Verbundindex |
| bvnumber | BV042194147 |
| classification_rvk | ZM 7030 |
| classification_tum | MTA 035d MTA 025d WER 460d |
| ctrlnum | (OCoLC)897009316 (DE-599)BSZ416846491 |
| discipline | Physik Werkstoffwissenschaften Werkstoffwissenschaften / Fertigungstechnik |
| edition | Als Ms. gedr. |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV042194147 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T01:14:59Z |
| institution | BVB |
| isbn | 9783183755059 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027633167 |
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| physical | X, 145 S. Ill., graf. Darst. |
| publishDate | 2014 |
| publishDateSearch | 2014 |
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| publisher | VDI-Verl. |
| record_format | marc |
| series | Fortschritt-Berichte VDI |
| series2 | Fortschritt-Berichte VDI : Reihe 5, Grund- und Werkstoffe, Kunststoffe |
| spelling | Ma, Songyun Verfasser (DE-588)1060581124 aut Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions Songyun Ma Als Ms. gedr. Düsseldorf VDI-Verl. 2014 X, 145 S. Ill., graf. Darst. txt rdacontent n rdamedia nc rdacarrier Fortschritt-Berichte VDI : Reihe 5, Grund- und Werkstoffe, Kunststoffe 755 Zugl.: Wuppertal, Univ., Diss. Sintermetall (DE-588)4124196-4 gnd rswk-swf Schadensmechanik (DE-588)4194956-0 gnd rswk-swf Mehrachsige Beanspruchung (DE-588)4247638-0 gnd rswk-swf Poröser Stoff (DE-588)4046811-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Sintermetall (DE-588)4124196-4 s Poröser Stoff (DE-588)4046811-2 s Mehrachsige Beanspruchung (DE-588)4247638-0 s Schadensmechanik (DE-588)4194956-0 s DE-604 Fortschritt-Berichte VDI Reihe 5, Grund- und Werkstoffe, Kunststoffe ; 755 (DE-604)BV000016442 755 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027633167&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Ma, Songyun Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions Fortschritt-Berichte VDI Sintermetall (DE-588)4124196-4 gnd Schadensmechanik (DE-588)4194956-0 gnd Mehrachsige Beanspruchung (DE-588)4247638-0 gnd Poröser Stoff (DE-588)4046811-2 gnd |
| subject_GND | (DE-588)4124196-4 (DE-588)4194956-0 (DE-588)4247638-0 (DE-588)4046811-2 (DE-588)4113937-9 |
| title | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions |
| title_auth | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions |
| title_exact_search | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions |
| title_full | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions Songyun Ma |
| title_fullStr | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions Songyun Ma |
| title_full_unstemmed | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions Songyun Ma |
| title_short | Experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi-axial loading conditions |
| title_sort | experimental and computational investigation of damage evolution and fatigue failure of porous sintered metals under multi axial loading conditions |
| topic | Sintermetall (DE-588)4124196-4 gnd Schadensmechanik (DE-588)4194956-0 gnd Mehrachsige Beanspruchung (DE-588)4247638-0 gnd Poröser Stoff (DE-588)4046811-2 gnd |
| topic_facet | Sintermetall Schadensmechanik Mehrachsige Beanspruchung Poröser Stoff Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027633167&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV000016442 |
| work_keys_str_mv | AT masongyun experimentalandcomputationalinvestigationofdamageevolutionandfatiguefailureofporoussinteredmetalsundermultiaxialloadingconditions |