Vol. 15 No. 1 (1993)

Research Paper

• Longitudinal shock of two elastic bars with one spherical end

  Nguyen Thuc An, Nguyen Dang To, Nguyen Hung Son

  5-9

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• Mean square error of the traditional replacement for the linear mechanical system

  Nguyen Dong Anh

  10-15

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• Energetic criterion in general elastic-plastic fracture mechanics

  Bui Huu Dan

  16-20

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• On the longitudinal motion of a thin ship travelling with constant forward speed in deep sea

  Nguyen Tien Dat

  21-27

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• Random nonlinear vibration of wagon

  Kieu The Duc

  28-36

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• On the motion of incompressible viscous fluid with flotation on free surface

  Tran Thu Ha

  37-44

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• About the reaction at the robot leg

  Pham Huyen, Nguyen Thanh Mau

  45-48

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