$ This is a spotweld config file for defining properties on generated spotweld $ elements in SWGen module in lsprepost 2.1 $ $ Comment lines begins with "$" in the first position. File is not case sensitive. $ $ Two keywords are mandatory: *SECTION_RANGE and *NRR_NRS_NRT $ $ MANDATORY KEYWORDS $ ================== $ Table for setting weld diameter. $ RANGE1 and RANGE2 are lower and upper values for thickness, see $ *SECTION_THICKNESS below. Any number of ranges on thickness can be used. $ The table must however start with "0.0" and end with "ABOVE". *SECTION_RANGE $ RANGE1 RANGE2 DIAMETER 0.0 1.0 2.1 1.0 1.5 2.3 1.5 2.5 2.7 2.5 3.5 3.0 3.5 ABOVE 4.0 $ $ Magnitude of NRR NRS and NRT based on SIGYbasemin = min(SIGY1, SIGY2), $ where SIGY1 and SIGY2 are the yield stresses for the parts being connected. $ If SIGYbasemin = 0., as in the case when spotwelding material without $ yield stress such as rigid or elastic material, the SIGYbasemin will be $ set to SIGY on *MAT_DEFAULTS keyword. $ Any number of ranges on thickness can be used. $ The table must however start with "0.0" and end with "ABOVE". *NRR_NRS_NRT $ RANGE1 RANGE2 K N A B 0 .1700 1.10 2.0 1.10 3.00 .1700 .2400 1.20 2.0 1.20 3.00 .2400 .3400 1.30 2.0 1.30 3.00 .3400 .4000 1.40 2.0 1.40 3.00 .4000 .4500 1.50 2.0 1.50 3.00 .4500 .5000 1.60 2.0 1.60 3.00 .5000 .5800 1.70 2.0 1.70 3.00 .5800 .7000 1.80 2.0 1.80 3.00 .7000 .9000 1.90 2.0 1.90 3.00 .9000 ABOVE 2.00 2.0 2.00 3.00 $ $ $ $ $ OPTIONAL KEYWORDS $ ================= $ Method to calculate NRR, NRS and NRT. (default: METHOD=1) $ K, N, A and B from *NRR_NRS_NRT table. "t" is thickness, see *NXX_THICKNESS keyword. $ METHOD = 1 NRR = K * t^N NRS = NRT = A*t + B $ METHOD = 2 NRR = K*t + N NRS = NRT = A*t + B *NXX_METHOD 1 $ $ TH = 1 Min thickness for the two parts connected with the weld element. $ TH = 2 Second largest thickness of ALL layers being connected with ONE spotweld point. $ Thickness to use when reading values from *SECTION_RANGE table. (default: TH=1) *SECTION_THICKNESS $ TH 1 $ Thickness to use when calculate NRR, NRS and NRT. (default: TH=1) *NXX_THICKNESS $ TH 1 $ $ Material Yield Stress for MAT_SPOTWELD becomes SIGY = min(SIGY1, SIGY2)*FAC $ where SIGY1 and SIGY2 are the yield stresses for the two parts connected by the $ weld element. (default: FAC=0.8) $ If SIGY1 or SIGY2 is zero, as in the case when spotwelding material without $ yield stress such as rigid or elastic material, the SIGY will be $ set to SIGY on *MAT_DEFAULTS keyword. *SIGY_SCALE $ FAC 0.8 $ $SECTION DEFAULTS Defaults: SHRF=1., QR/IRID=2., CST=1.0 *BEAM_SECTION $ SHRF QR/IRID CST 1. 2.0 1.0 $ $*HEXA_SECTION Default: ETYPE=1 $ ETYPE 1 $ *HEXA_HOURGLASS Default: ETYPE=6 6 $ $MATERIAL DEFAULTS Defaults: RO=7.8e-9, E=200000., PR=0.3, SIGY=350., ET=500., DT=0.0 *MAT_DEFAULTS $ RO E PR SIGY ET DT 7.8e-6 200. 0.30 0.35 2. 1.0e-3 $