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Room temperature cyclic compressive testing of high purity fine (FG) and coarse (CG) grained Ti 2 AlC were carried out in combination with Resonant Ultrasound Spectroscopy (RUS) tests and post mortem Electron-backscatter Diffraction (EBSD). The results show that the room temperature mechanical response of Ti 2 AlC can be divided in four stress regions with distinct underlying mechanisms: (a) Region I (FG: 0 to ≈ 175 MPa; CG: 0 to ≈ 100 MPa) characterized by a linear elastic behavior; (b) Region II (FG: from ≈ 175 to ≈ 350 MPa; CG from ≈100 to ≈ 200 MPa) in which stress strain hysteric behavior due to reversible dislocation flow in the soft grains; (c) Region III (FG: from ≈ 350 to ≈ 1100 MPa; CG from ≈200 to ≈650 MPa) accumulation of dislocation walls (DWs) results in cyclic hardening and contribute to larger hysteretic loops and thus a larger energy dissipation per loading cycle than in Region II; (d) Region IV (FG: from ≈ 1100 MPa to failure, CG from ≈ 600 MPa to failure) characterized by the occurrence of microcracking that, in addition to the other aforementioned deformation mechanisms, contributes to the energy dissipated in each loading cycle.

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One of the challenges of distributed computer systems is the effective allocation of software system functions among the hardware components of the distributed system. Software function allocation methodology (SFAM) provides computer software system designers with a thorough and flexible method to allocate software system functions among the hardware components of a distributed computer system. Software designers select and rank relevant design parameters, analyse how well different distributed computer system components meet the chosen parameters, and allocate the software function accordingly. The paper defines the problem, covers necessary terminology, and discusses the current state of research. The preconditions necessary for an analysis using SFAM are covered along with the environment in which SFAM should be used. Details of SFAM components are discussed. A complete outline of the SFAM methodology is provided, along with discussion of key points and frequent examples.