In　design　analysis　of　refractory　materials，it　is　necessary　for　the　analyst　to　establish　an　appropriate methodology　for　prediction，upon　knowing　thoroughly　the　behavior due　to　the　material inhomogeneity　and　pertinent　nonlinearities．The　alumina－magnesia　compound，in　which　the　reaction may　occur　during　the　service　period， would　resume　a　complicated material　behavior　with　thermo-reactive　expansion，elastoplasticity，and creep． In　this　report，the　creep　material　coefficients　associated　with　the　Norton－Baily　relation　were determined　during　the　creep　test　in　an　axial　compression　at　various　temperatures．The　obtained material　coefficients　were　used　in　a　creep　analysis　of　the　ladle　lining　material　subjected　to　a　cyclic thermal　shock　simulating　its　operating　conditions．The　finite　element　analysis　accounts　for　the effects　of　the　spinel　reaction　occurring　in　the　material during　the　heat　cycle　history， as　well　as　for the　creep　effects．The　spinel　reaction　expansion　enhance（i　the　compressive　stress　in　the　surface area　of　the　lining　in　the　heat－charge　cycles　of　the　analysis． The　compressed　stress　is　subsequently relaxed　by　the　emerged　creep　strain．There　exists　a　thin　layer　where　the　stress　cascades　at　about 40 to 70 mm　from　the　surface　in　the　cycles． Under　the　thermal-cycle　loading　situations， the　repeated stress　trip　would　accumulate　possible　micro　defects，such　as　micro－cracking　or damage， which　may eventually　be　promoted　to　the　delamination　occurring　on　the　surface　of　the　ladle． The　analytical　results　show　the　reliability　of　the　developed　procedure　in　reference　to　the experimental　evidences　found　in　relevance　to　the　delamination　that　occurs　on　the　surface　layer　of the　materiaｌ．

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