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The goal of this work is to investigate the feasibility of using topology optimization to design support structure to mitigate residual stress induced build failure .
 feasibility, topology optimization, design, structure, residual stress, build failure
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 feasibility, topology optimization, design, structure, residual stress, build failure