G-control fatigue testing for cyclic crack propagation in composite structures

Marcello Manca, Christian Berggreen, Leif A. Carlsson

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper presents a computer controlled testing methodology called “The G-control Method” which allows cyclic crack growth testing using real-time control of the cyclic energy release rate. The advantages of using this approach are described and compared with traditional fatigue testing methods (displacement or load control). The compliance based analytical formulation for G-control is explained for the DCB specimen and then applied to experimental testing of the sandwich MMB specimen. Experimental results are presented for sandwich MMB specimens with fiberglass face sheets and PVC foam core, showing that the G-control method allows fatigue testing at a constant range of energy release rates leading to a constant crack propagation rate.
Original languageEnglish
JournalEngineering Fracture Mechanics
Volume149
Pages (from-to)375-386
ISSN0013-7944
DOIs
Publication statusPublished - 2015

Keywords

  • Sandwich
  • Interface
  • Fracture characterization
  • Energy release rate
  • Crack propagation

Cite this

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title = "G-control fatigue testing for cyclic crack propagation in composite structures",
abstract = "This paper presents a computer controlled testing methodology called “The G-control Method” which allows cyclic crack growth testing using real-time control of the cyclic energy release rate. The advantages of using this approach are described and compared with traditional fatigue testing methods (displacement or load control). The compliance based analytical formulation for G-control is explained for the DCB specimen and then applied to experimental testing of the sandwich MMB specimen. Experimental results are presented for sandwich MMB specimens with fiberglass face sheets and PVC foam core, showing that the G-control method allows fatigue testing at a constant range of energy release rates leading to a constant crack propagation rate.",
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G-control fatigue testing for cyclic crack propagation in composite structures. / Manca, Marcello; Berggreen, Christian; Carlsson, Leif A.

In: Engineering Fracture Mechanics, Vol. 149, 2015, p. 375-386.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - G-control fatigue testing for cyclic crack propagation in composite structures

AU - Manca, Marcello

AU - Berggreen, Christian

AU - Carlsson, Leif A.

PY - 2015

Y1 - 2015

N2 - This paper presents a computer controlled testing methodology called “The G-control Method” which allows cyclic crack growth testing using real-time control of the cyclic energy release rate. The advantages of using this approach are described and compared with traditional fatigue testing methods (displacement or load control). The compliance based analytical formulation for G-control is explained for the DCB specimen and then applied to experimental testing of the sandwich MMB specimen. Experimental results are presented for sandwich MMB specimens with fiberglass face sheets and PVC foam core, showing that the G-control method allows fatigue testing at a constant range of energy release rates leading to a constant crack propagation rate.

AB - This paper presents a computer controlled testing methodology called “The G-control Method” which allows cyclic crack growth testing using real-time control of the cyclic energy release rate. The advantages of using this approach are described and compared with traditional fatigue testing methods (displacement or load control). The compliance based analytical formulation for G-control is explained for the DCB specimen and then applied to experimental testing of the sandwich MMB specimen. Experimental results are presented for sandwich MMB specimens with fiberglass face sheets and PVC foam core, showing that the G-control method allows fatigue testing at a constant range of energy release rates leading to a constant crack propagation rate.

KW - Sandwich

KW - Interface

KW - Fracture characterization

KW - Energy release rate

KW - Crack propagation

U2 - 10.1016/j.engfracmech.2015.06.059

DO - 10.1016/j.engfracmech.2015.06.059

M3 - Journal article

VL - 149

SP - 375

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JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

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