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Study on damage accumulation process of ceramics matrix composites for their life prediction

Details of research theme

【Title of research theme】

Study on damage accumulation process of ceramics matrix composites for their life prediction

 

High temperature composite materials, like ceramics fiber reinforced ceramics have been a promising material for not only thrusters and fuselages of high performance space crafts but also optical benches or mirrors for a space telescope. High temperature composites exhibit damage tolerance property as a high durable structural material. However, their fracture process is complicated and effective technique to predict damage evolution and life, so far. This study aims to elucidate damage evolution and accumulation process of high temperature composites for the accurate life prediction during usage. Fracture and fatigue process for ceramic based high temperature composites will be experimentally examined in detail. Numerical simulations to simulate damage evolution and accumulation process will be conducted for life prediction of a component of a space craft engine. 

Required abilities， qualities， and experience

Knowledge on mechanics of materials and experience on a simulation of mechanical behavior of composite materials or damage modeling of structural materials. Experience of handling finite element analysis software, ABAQUS or similar or numerical simulation based on mechanics of materials. Experiences on mechanical testing of structural materials, fracture test or fatigue test. Material structure observation by optical or electron microscopes.

Any restrictions/disadvantages for non-native Japanese speakers?

English or Japanese communication skill is indispensable.

Research environment after arriving at one’s post.

Skilled researchers for mechanical tests of structural materials or numerical simulation based on mechanics of materials will support the research activity. Research collaboration with researchers skilled in structural engineering or propulsion engineering. 

Many experimental facilities are available, such as mechanical testing machines, high temperature mechanical testing machines, optical and electron microscopes, specimen preparation equipment, and finite element analysis software and computers.

Research leader

Associate Professor　GOTO Ken

Location

Sagamihara Campus

Department

Department for space flight systems

Abilities， qualifications， and experience expected to be obtained at the end of the term

Knowledge of the design and performance of the on-board equipment.

Closing Date

November 23th(mon), 2020  17:00(JST)

* Please note that you are not able to pre-apply during 1a.m.~5a.m.(JST) on the third Thursday of each month due to regular system maintenance. Thank you for avoiding the certain time.

Selection Schedule

Document screening: Late-November, 2020

Online Interview: Mid-December, 2020 (time will be specified individually)

* Schedule is subject to change.

Attached document

FORM 1 Research Plan
FORM 2 Research Achievements
FORM 3 Summary of Representative Thesis
FORM 4 Letter of Recommendation

*Letter of Recommendation must be attached by the person or sent by the recommender by email.

If you do not send a Letter of Recommendation, your application will be invalid.

Contact information

■For specific inquiries about the research theme;

 goto.ken*jaxa.jp

 

■For general inquiries

JAXA HR Office: jaxacareer*jaxa.jp

 

Please change * to @ above.

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