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Reviewer #1: In the present manuscript it is claimed that a 'new' anisotropic yield function has been developed. However, the manuscript contains several serious flaws which disqualify it for publishing in IJP. The main reasons for judging against publication are as follows:

(1) In the paper several violations of scientific citation standards can be found. Mainly in Section 2.2 frequent use is made of the results of the works of Barlat et al. (2005) and Cazacu et al. (2006,2008) without any proper citation. In particular, the yield functions in Eqns. (7) and (8) go back to the said references, as well as the linear transformation matrices on the next page.
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(2) Overall, the paper does not contain any novelity. A solved problem (asymmetric yielding of orthotropic metals) has been solved by means of already known methods and known yield functions. All yield functions used in this paper have already been published and they are just plugged together to give another model that does not provide any advantages. The asymmetric yielding extension appears is trivial since it was already proposed by Cazacu et al. (2006). The only trivial 'novelity' in this paper is to insert this kind of extension in the Yld2004-18p yield function, which is not really innovative.
ÎÒÀí½âÉó¸åÈ˵ÄÒâ˼ÊÇ˵ÎÒµÄÎÄÕÂûÓÐÈκδ´ÐÂÐÔ£¨Òâ¼ûÖеÄÕâ¸ö¡°novelity¡±£¬ÎÒ»³ÒÉÉó¸åÈ˰ѵ¥´Êд´íÁË£©¡£¿ÉÊǸ÷룬ҪÊÇÎÄÕÂÕæµÄÒ»µãÐµĶ«Î÷¶¼Ã»ÓУ¬ÎÒÄÜд³öÎÄÕÂÂð£¿ÊÂʵÊÇÎÒ×Ô¼ºÌá³öÁËÒ»¸ö¹«Ê½£¬Õâ¸ö¹«Ê½ÓÉÁ½²¿·Ö×é³É¡£Ò»¸ö²¿·ÖÊÇͨ¹ýÐÞÕýÒ»¸öÒѾ­·¢±íµÄ¹«Ê½¶øÀ´£¬¶øÁíÍâÒ»²¿·ÖÔòÊÇÖ±½Ó½èÓñðÈËÒѾ­·¢±íµÄ¹«Ê½¡£ÎÒ·¢ÏÖ½«Á½²¿·Ö¼òµ¥×éºÏÔÚÒ»Æð£¬¾Í¿É»ñµÃ±Èµ¥¶ÀµÄÈκÎÒ»¸ö¸üÓÅÒìµÄ¹«Ê½£¨ÊÂʵÉÏΪÁËÄܵõ½¸üºÃµÄ×éºÏ¹«Ê½£¬ÎÒ²ÅÐÞÕýÁ˵ÚÒ»²¿·ÖµÄ¹«Ê½£©¡£µÃµ½µÄÖ÷Òª½áÂÛÊÇÔÚ²»½µµÍ¹«Ê½µÄÃèÊö¾«¶ÈǰÌáÏ£¬¿É¿É¹ÛµÄ¼õÉÙ¹«Ê½ÖеIJÎÊý¸öÊý¡£Éó¸åÈ˵ÄÒâ˼ÊÇÎÒÓÃÁËÁ½¸öÒѾ­·¢±íµÄ¹«Ê½£¨ºöÂÔÎÒÐÞÕýµÄÄDz¿·Ö¹«Ê½£©£¬¼òµ¥×éºÏµÃµ½µÄ¹«Ê½¡¢Ò»¸ö¸üºÃµÄ¹«Ê½£¬²»ÄÜËãÊÇÓÐÄÇÑùÒ»µãµã´´Ð£¿¸öÈ˾õµÃ£¬ËäÈ»²»ÊǺܺõİ취£¬µ«ÊÇÊÇÒ»ÖÖ·½·¨°¡£¡Çó½â°¡¡­¡­

(3) It appears that there is no need at all to insert the said asymmetric yielding extension into the Yld2004-18p yield function. To model asymmetric yielding it is sufficient to add the Yld2004-18p yield function to an arbitrary number of CPB06 yield function terms or to omit Yld2004-18p at all.
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