QUASI-CUP SPECIMENS AS A NEW ENERGY ABSORBER PART UNDER THE QUASI-STATIC AXIAL LOADING

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Niknejad Abbas; Karami Fath Iman

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: CONFERENCE OF IRANIAN AEROSPACE SOCIETY
Year:2015 | Issue:14

Download Full-Text

View:

137

Download:

Information Seminar Paper

Title

QUASI-CUP SPECIMENS AS A NEW ENERGY ABSORBER PART UNDER THE QUASI-STATIC AXIAL LOADING

Author(s)

Niknejad Abbas | Karami Fath Iman

Keywords

QUASI CUP SPECIMEN

AXIAL COMPRESSION

ENERGY ABSORPTION

EXPERIMENT

THIN WALLED SAMPLE

Abstract

SOME THIN-WALLED STRUCTURES SUCH AS FRUSTA, DOME, EGGBOX AND CONES ARE WIDELY USED IN THE AEROSPACE APPLICATIONS. THIS ARTICLE REPRESENTS A NOVEL ENERGY ABSORBER WITH QUASI-CUP GEOMETRY UNDER THE QUASISTATIC AXIAL COMPRESSION LOADING BETWEEN TWO RIGID PLATENS BY THE EXPERIMENTAL METHOD. FOR THIS PROPOSE, SOME QUASI-CUP SPECIMENS, THAT HAVE BEEN PRODUCED BY SHAPING THE CIRCULAR BLANKS WITH TEFLON-PAD FORMING, WERE USED IN THE IN THE AXIAL COMPRESSION TESTS. THE QUASI-CUP SPECIMENS WERE PREPARED WITH DIFFERENT APEX ANGLES, THICKNESS AND MATERIAL PROPERTIES TO INVESTIGATE INFLUENCES OF THE MENTIONED PARAMETERS ON THE ENERGY ABSORPTION PROCESS. DIAGRAMS OF AXIAL LOAD-DISPLACEMENT AND ABSORBED ENERGY-DISPLACEMENT OF EACH SAMPLE ARE SKETCHED AND ITS SPECIFIC ABSORBED ENERGY IS OBTAINED BY CALCULATING THE RATIO OF TOTAL ABSORBED ENERGY PER MASS OF THE STRUCTURE. THE EXPERIMENTAL RESULTS SHOW THAT WHEN A QUASI-CUP SPECIMEN IS FILLED BY THE POLYURETHANE FOAM WITH DENSITY OF 50 KG/M3 AND PLATEAU STRESS OF 0.26 MPA, SPECIFIC ABSORBED ENERGY BY THE SPECIMENS INCREASES. ALSO, THE TESTS DEMONSTRATE THAT BY ENHANCING THE APEX ANGLE OF THE QUASI-CUP SPECIMENS, ULTIMATE DISPLACEMENT REDUCES AND AXIAL LOAD ENHANCES. EXPERIMENTS INDICATE THAT THERE IS AN OPTIMUM VALUE FOR APEX ANGLE AND A QUASI-CUP SPECIMEN WITH THE OPTIMUM APEX ANGLE HAS THE HIGHEST SPECIFIC ABSORBED ENERGY, IN COMPARISON WITH THE OTHER ONES. FURTHERMORE, EXPERIMENTAL MEASUREMENTS SHOW THAT WHEN THICKNESS OF THE QUASI-CUP SPECIMENS INCREASES, SPECIFIC ABSORBED ENERGY BY THE SAMPLES INCREASES, TOO. TOTALLY, THE CURRENT RESEARCH WORK INTRODUCES A QUASI-CUP SPECIMEN WITH APEX ANGLE OF 90O IN THICK-WALLED CONDITION AND WITH THE POLYURETHANE FOAM-FILLER AS A SUITABLE ENERGY ABSORBER STRUCTURE.

Cites

No record.

References

No record.

Cite

APA: Copy

Niknejad, Abbas, & Karami Fath, Iman. (2015). QUASI-CUP SPECIMENS AS A NEW ENERGY ABSORBER PART UNDER THE QUASI-STATIC AXIAL LOADING. CONFERENCE OF IRANIAN AEROSPACE SOCIETY. SID. https://sid.ir/paper/945702/en

Vancouver: Copy

Niknejad Abbas, Karami Fath Iman. QUASI-CUP SPECIMENS AS A NEW ENERGY ABSORBER PART UNDER THE QUASI-STATIC AXIAL LOADING. 2015. Available from: https://sid.ir/paper/945702/en

IEEE: Copy

Abbas Niknejad, and Iman Karami Fath, “QUASI-CUP SPECIMENS AS A NEW ENERGY ABSORBER PART UNDER THE QUASI-STATIC AXIAL LOADING,” presented at the CONFERENCE OF IRANIAN AEROSPACE SOCIETY. 2015, [Online]. Available: https://sid.ir/paper/945702/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops