A two scale finite-element-approach to analyse the damage state of composite structures:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Köln
DLR, Bibliotheks- und Informationswesen
2011
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt
2011,05 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | VI, 132 S. Ill., graph. Darst. 21 cm |
Internformat
MARC
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| 245 | 1 | 0 | |a A two scale finite-element-approach to analyse the damage state of composite structures |c Janko Kreikemeier |
| 250 | |a Als Ms. gedr. | ||
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Datensatz im Suchindex
| _version_ | 1804148325020073984 |
|---|---|
| adam_text | IMAGE 1
CONTENTS
1 INTRODUCTION 1
1.1 OBJECTIVES OF THE PRESENT WORK 4
1.2 LIST OFSYMBOLS AND SETS 5
1.3 NOTATION 7
2 FRACTURE AND DAMAGE MODELLING, STATE OF THE ART 9
2.1 INTRODUCTION 9
2.2 ANALYTICAL APPROACHES 13
2.2.1 STRENGTH ASSESSMENT ; 13
2.2.2 FRACTURE MECHANICAL APPROACHES 16
2.2.3 COHESIVE ZONE MODELS 19
2.2.4 CONTINUUM DAMAGE MECHANICS 19
2.2.5 COMPRESSION STRENGTH OF COMPOSITE MATERIALS 20
2.3 NUMERICAL TREATMENT OF FRACTURE AND DAMAGE 22
2.3.1 STANDARD CONTINUUM MECHANICS APPROACHES 22
2.4 MULTISCALE MODELLING 24
2.4.1 MULTISCALE FINITE ELEMENT ANALYSIS 26
2.4.2 MULTISCALE MODELLING BY MEANS OF FAST FOURIER TRANSFORMATION . ..
28 2.4.3 VORONOI CELL FINITE ELEMENT ANALYSIS 29
2.5 CONCLUSION 30
3 REMARKS ON CONTINUUM MECHANICS 31
3.1 BALANCE EQUATIONS AND CONSERVATION LAWS 33
3.2 ENTROPY INEQUALITY 34
3.3 THE CLASSICAL BOUNDARY VALUE PROBLEM OF ELASTICITY 34
3.4 VARIATIONAL FORMULATION AND WEAK FORM OF EQUILIBRIUM 35
3.5 STRAIN MEASURES 36
3.6 STRESS MEASURES 37
4 THE TWO SCALE APPROACH 39
4.1 INTRODUCTION 39
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1013287002
DIGITALISIERT DURCH
IMAGE 2
CONTENTS
4.2 THE CONSTITUTIVE RELATION 40
4.3 THE DAMAGE APPROACH 41
4.3.1 THE DAMAGE FUNCTION 41
4.3.2 ANISOTROPIE DAMAGE PROPAGATION 43
4.4 THERMODYNAMICAL CONSISTENCY 48
4.5 LOCALISATION PHENOMENON 49
4.5.1 THE VISCOUS REGULARISATION 55
4.6 FINITE ELEMENT FORMULATION 56
4.6.1 LINEARISATION OF THE WEAK FORM 56
4.6.2 DISCRETISATION 58
4.6.3 CONVERGENCE OF FINITE ELEMENT SOLUTIONS 60
4.6.4 ELEMENT STIFFNESS MATRIX ON MICROSCALE 62
4.6.5 REALISATION OF PERIODIC DISPLACEMENT BOUNDARY CONDITIONS 65 4.6.6
NUMERICAL MODELLING OF PHASE BOUNDARIES 69
4.6.7 VERIFICATION OF THE GAUSS-POINT METHOD 72
4.7 HOMOGENISATION OF MICRO INFORMATION 79
4.7.1 ANALYTICAL METHODS 79
4.7.2 HOMOGENISATION AT FINITE DEFORMATION 81
4.8 COUPLING WITH COMMERCIAL FE TOOL 83
4.8.1 ELEMENT STIFFNESS MATRIX ON MACROSCALE 83
4.9 CONCLUSION 85
NUMERICAL EXAMPLES 87
5.1 VERIFICATION OF THE VISCOUS REGULARISATION 87
5.2 SHELL WITH A HOLE 93
5.3 CRIMPED END FITTINGS 99
5.3.1 EFFECTIVE MATERIAL PARAMETERS 99
5.3.2 EXPERIMENTAL OBSERVATIONS 103
5.3.3 NUMERICAL MODEL 103
5.3.4 RESULTS 107
5.4 CONCLUSION 113
CONCLUSION AND OUTLOOK 115
6.1 CONCLUSION 115
6.2 OUTLOOK 116
|
| any_adam_object | 1 |
| author | Kreikemeier, Janko 1979- |
| author_GND | (DE-588)1013630823 |
| author_facet | Kreikemeier, Janko 1979- |
| author_role | aut |
| author_sort | Kreikemeier, Janko 1979- |
| author_variant | j k jk |
| building | Verbundindex |
| bvnumber | BV039518156 |
| ctrlnum | (OCoLC)750764087 (DE-599)DNB1013287002 |
| dewey-full | 620.1186 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 620 - Engineering and allied operations |
| dewey-raw | 620.1186 |
| dewey-search | 620.1186 |
| dewey-sort | 3620.1186 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen |
| edition | Als Ms. gedr. |
| format | Thesis Book |
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| id | DE-604.BV039518156 |
| illustrated | Illustrated |
| indexdate | 2024-07-10T00:05:20Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-024370714 |
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| owner_facet | DE-83 DE-210 DE-706 |
| physical | VI, 132 S. Ill., graph. Darst. 21 cm |
| publishDate | 2011 |
| publishDateSearch | 2011 |
| publishDateSort | 2011 |
| publisher | DLR, Bibliotheks- und Informationswesen |
| record_format | marc |
| series2 | Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt |
| spelling | Kreikemeier, Janko 1979- Verfasser (DE-588)1013630823 aut A two scale finite-element-approach to analyse the damage state of composite structures Janko Kreikemeier Als Ms. gedr. Köln DLR, Bibliotheks- und Informationswesen 2011 VI, 132 S. Ill., graph. Darst. 21 cm txt rdacontent n rdamedia nc rdacarrier Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt 2011,05 Zugl.: Magdeburg, Univ., Diss., 2011 Mehrskalenmodell (DE-588)7600619-0 gnd rswk-swf Bruchmechanik (DE-588)4112837-0 gnd rswk-swf Verbundwerkstoff (DE-588)4062670-2 gnd rswk-swf Finite-Elemente-Methode (DE-588)4017233-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Verbundwerkstoff (DE-588)4062670-2 s Bruchmechanik (DE-588)4112837-0 s Mehrskalenmodell (DE-588)7600619-0 s Finite-Elemente-Methode (DE-588)4017233-8 s DE-604 Deutsches Zentrum für Luft- und Raumfahrt Forschungsbericht 2011,05 (DE-604)BV011758990 2011,05 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024370714&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kreikemeier, Janko 1979- A two scale finite-element-approach to analyse the damage state of composite structures Mehrskalenmodell (DE-588)7600619-0 gnd Bruchmechanik (DE-588)4112837-0 gnd Verbundwerkstoff (DE-588)4062670-2 gnd Finite-Elemente-Methode (DE-588)4017233-8 gnd |
| subject_GND | (DE-588)7600619-0 (DE-588)4112837-0 (DE-588)4062670-2 (DE-588)4017233-8 (DE-588)4113937-9 |
| title | A two scale finite-element-approach to analyse the damage state of composite structures |
| title_auth | A two scale finite-element-approach to analyse the damage state of composite structures |
| title_exact_search | A two scale finite-element-approach to analyse the damage state of composite structures |
| title_full | A two scale finite-element-approach to analyse the damage state of composite structures Janko Kreikemeier |
| title_fullStr | A two scale finite-element-approach to analyse the damage state of composite structures Janko Kreikemeier |
| title_full_unstemmed | A two scale finite-element-approach to analyse the damage state of composite structures Janko Kreikemeier |
| title_short | A two scale finite-element-approach to analyse the damage state of composite structures |
| title_sort | a two scale finite element approach to analyse the damage state of composite structures |
| topic | Mehrskalenmodell (DE-588)7600619-0 gnd Bruchmechanik (DE-588)4112837-0 gnd Verbundwerkstoff (DE-588)4062670-2 gnd Finite-Elemente-Methode (DE-588)4017233-8 gnd |
| topic_facet | Mehrskalenmodell Bruchmechanik Verbundwerkstoff Finite-Elemente-Methode Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024370714&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV011758990 |
| work_keys_str_mv | AT kreikemeierjanko atwoscalefiniteelementapproachtoanalysethedamagestateofcompositestructures |