Failure predictions of DP600 steel sheets using various uncoupled fracture criteria

Habibi, Niloufar; Ramazani, Ali; Sundararaghavan, Veera; Prahl, Ulrich

doi:10.1016/j.engfracmech.2017.12.022

Cited by 45 publications

(12 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Cross-die Deep Drawing Testsmentioning

confidence: 61%

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Habibi¹,

Sundararaghavan²,

Prahl³

et al. 2018

Preprint

Self Cite

View full text Add to dashboard Cite

The formability and failure behavior of TRIP steel blanks were investigated through various stress states. The forming limit diagram (FLD) at fracture is constructed both experimentally and numerically. Numerical studies are performed to evaluate the applicability of different damage criteria in predicting the FLD as well as complex cross-die deep drawing process.  The fracture surface and numerical results revealed that the material failed in a different mode for different strain path. Therefore, Tresca model which is based on shear stress accurately predicted the conditions where shear had the profound effect on the damage initiation, whereas Situ localized necking criterion was able to calculate the conditions which localization was dominant.

show abstract

Section: Cross-die Deep Drawing Testsmentioning

confidence: 61%

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Habibi¹,

Sundararaghavan²,

Prahl³

et al. 2018

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The magnitude of the errors for this load can be attributed to the different mechanical properties of DP600 steels used by [12], [5] and [11]. The data used to feed the computational model were obtained by [11] and the failure criteria calibration constants were the same used by [5] in practical and computational tests with DP600 steel.…”

Section: Resultsmentioning

confidence: 99%

Comparative study of six failure criteria via numerical simulation of stamped DP600 steel

Ribas

Gipiela

Lajarin

et al. 2022

Preprint

View full text Add to dashboard Cite

During the development of an automobile part obtained by stamping process, time and money are required aiming process planning and set up of a new tooling. One of the difficulties in stamping is to know if the chosen material will have sufficient formability to reach the final form required by the project. Because of this difficulty it is very interesting to propose a method that can accurately simulate the forming process. The failure criteria can be mathematical or empirical models capable of determining the onset of necking for each stress/strain states. It is interesting to find a failure criterion that can be easily determined and provides a good ability to detect the failure accurately. In this study six different failure criteria were studied. Five of them are classified as ductile damage models and they depend on the stress triaxiality and plastic strain. The last criteria depend only on the deformations in the main directions and it is called the forming limit curve (FLC). It was used computational models through finite element analysis (FEA). The formability was evaluated by monitoring the displacement of the punch until the failure of the material. Some failure criteria have been able to provide approximation errors in the range of 0.7 - 5% which makes them interesting for practical implementation in the industry.

show abstract

“…However, good agreement between the predicted results for Tresca model and the experimental data was attributable to the Tresca model being calibrated using the Nakajima specimen with plane-strain path and the failure happening in the near plane-strain condition in the critical elements. It is worth mentioning that the deformation history for different elements in the cross-die test revealed that the different elements mostly experienced a relatively linear strain path up to fracture [35]. Therefore, the nonlinear strain path did not significantly occur in the critical elements through cross-die deep drawing process.…”

Section: Metals 2018 8 X For Peer Review 12 Of 18mentioning

confidence: 93%

“…It is worth mentioning that the shape and concavity of the FLD has strong effect on the prediction of damage location. Therefore, these results of cross-die test are different from the ones for DP600 [35]. Figure 15 depicts the calculated height of safe cross-die products by applying different failure models and compares them with experimental data of safe and failed products.…”

Section: Metals 2018 8 X For Peer Review 12 Of 18mentioning

confidence: 93%

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Habibi

Sundararaghavan

Prahl

et al. 2018

Metals

Self Cite

View full text Add to dashboard Cite

The formability and failure behavior of transformation-induced plasticity (TRIP) steel blanks were investigated through various stress states. The forming limit diagram (FLD) at fracture was constructed both experimentally and numerically. Numerical studies were performed to evaluate the applicability of different damage criteria in predicting the FLD as well as complex cross-die deep drawing process. The fracture surface and numerical results reveal that the material failed in a different mode for different strain path. Therefore, the Tresca model, which is based on shear stress, accurately predicted the conditions where shear had a profound effect on the damage initiation, whereas Situ localized necking criterion could calculate the conditions in which localization was dominant.

show abstract

Failure predictions of DP600 steel sheets using various uncoupled fracture criteria

Cited by 45 publications

References 35 publications

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Comparative study of six failure criteria via numerical simulation of stamped DP600 steel

Experimental and Numerical Investigations into the Failure Mechanisms of TRIP700 Steel Sheets

Contact Info

Product

Resources

About